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Note 3 - Loans Receivable and Allowance for Credit Losses on Loans - Schedule of Collateral Dependent Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Gross | $ 2,494,929 | $ 2,433,015
Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 5,867 | 5,787
Residential Real Estate [Member] |  |
Financing Receivable, Gross | 322 | 269
Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 4,578 | 4,888
Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 10,767 | 10,944
Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Gross | 1,550,490 | 1,530,381
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 5,867 | 5,787
Real Estate Portfolio Segment [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 322 | 269
Real Estate Portfolio Segment [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Real Estate Portfolio Segment [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 6,189 | 6,056
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 1,130 | 1,088
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 1,130 | 1,088
Real Estate Portfolio Segment [Member] | Construction Loans [Member] |  |
Financing Receivable, Gross | 292,366 | 303,054
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 4,737 | 4,699
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 0 |
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 4,737 | 4,699
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] |  |
Financing Receivable, Gross | 75,063 | 69,488
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 156 | 173
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 156 | 173
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member] |  |
Financing Receivable, Gross | 591,666 | 567,742
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 166 | 96
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 166 | 96
Consumer Portfolio Segment [Member] |  |
Financing Receivable, Gross | 632,417 | 646,753
Consumer Portfolio Segment [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Consumer Portfolio Segment [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Consumer Portfolio Segment [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 2,003 | 2,205
Consumer Portfolio Segment [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 2,003 | 2,205
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] |  |
Financing Receivable, Gross | 552,226 | 569,903
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 1,770 | 1,863
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 1,770 | 1,863
Consumer Portfolio Segment [Member] | Marine Loans [Member] |  |
Financing Receivable, Gross | 76,845 | 73,310
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 233 | 342
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 233 | 342
Commercial Business Portfolio Segment [Member] |  |
Financing Receivable, Gross | 312,022 | 255,881
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Gross | 296,773 | 238,301
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 2,575 | 2,683
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | $ 2,575 | $ 2,683

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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
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